CN102236279B - Gear center-distance maintaining mechanism, image forming apparatus, and assembly - Google Patents
Gear center-distance maintaining mechanism, image forming apparatus, and assembly Download PDFInfo
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- CN102236279B CN102236279B CN201010589865.8A CN201010589865A CN102236279B CN 102236279 B CN102236279 B CN 102236279B CN 201010589865 A CN201010589865 A CN 201010589865A CN 102236279 B CN102236279 B CN 102236279B
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- Prior art keywords
- gear
- supporter
- arcwall face
- restricted part
- axis
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
- G03G15/0813—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by means in the developing zone having an interaction with the image carrying member, e.g. distance holders
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/19—Gearing
- Y10T74/1956—Adjustable
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/19—Gearing
- Y10T74/1956—Adjustable
- Y10T74/19565—Relative movable axes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/19—Gearing
- Y10T74/1956—Adjustable
- Y10T74/19565—Relative movable axes
- Y10T74/1957—Parallel shafts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/19—Gearing
- Y10T74/19614—Disconnecting means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/19—Gearing
- Y10T74/19623—Backlash take-up
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/19—Gearing
- Y10T74/19633—Yieldability in gear trains
Abstract
The invention provides a gear center-distance maintaining mechanism, an image forming apparatus, and an assembly. The gear center-distance maintaining mechanism includes a first support body that rotatably supports a first gear to be rotated by driving force from a driving unit, a second support body that rotatably supports a second gear to be meshed with the first gear so as to transmit rotational force from the first gear to a rotating body, the second support body being movable relative to the first support body in a direction such that the second gear moves away from the first gear, an arc-shaped face provided in the second support body and centered on an axis of the second gear, and a restricting portion provided in the first support body and shaped like an arc centered on an axis of the first gear, the restricting portion restricting the movement of the second support body relative to the first support body by contact with the arc-shaped face.
Description
Technical field
The present invention relates to gear center-distance maintaining mechanism, image processing system and assembly.
Background technology
Japanese Unexamined Patent Application Publication No.10-104908 (see Fig. 7) discloses following a kind of structure: be provided with supporting member at least one axial end portion of development sleeve, and in apparatus main body, be provided with the position limitation plate with the arc occlusion portion be engaged with supporting member.Under the state that supporting member is engaged with occlusion portion, developing cell is arranged on predetermined visualization position.Even if when the driven wheel being located at image formation unit side applies horizontal component, developing cell also can be limited and is subjected to displacement from predetermined visualization position.
Japanese Unexamined Patent Application Publication No.2008-176047 discloses following a kind of image processing system, and wherein, toner container, intermediary transfer unit and developing cell are arranged in order from top to bottom.Press developing cell by utilizing elastic body and fix developing cell, elastic body contacts with the intermediary transfer unit being placed in upside regularly.Due to the position not needing specific parts to fix developing cell, so reduce production cost, and accurately can fix the position of developing cell.
Japanese Unexamined Patent Application Publication No.2003-76106 (see Fig. 1) discloses a kind of tandem type color image forming device comprising at least two images formation stations.Formed in station at each image, charhing unit, developing cell and transfer printing unit are arranged around image-carrier.When image forms station, coloured image formation processing is carried out at intermediate transfer belt.Multiple image-carrier and intermediate transfer belt are arranged in image carrier box and also relative to each other position, and image carrier box is removably mounted in apparatus main body.Each image-carrier be arranged in image carrier box is removably provided with developing cell.
Summary of the invention
The present invention is intended to the change of the centre distance between the first gear of suppressing to be engaged each other and the second gear.
According to a first aspect of the invention, provide a kind of gear center-distance maintaining mechanism, comprising: the first supporter, it rotatably supports the first gear, and described first gear rotates by the drive force of driver element; Second supporter, it rotatably supports the second gear, described second gear and described first engaged gears are to pass to rotary body by the revolving force from described first gear, and described second supports physical efficiency moves along the direction making described second gear away from described first gear relative to described first supporter; Arcwall face, it to be arranged in described second supporter and centered by the axis of described second gear; And restricted part, it is arranged on the arcuate shape centered by the axis also in described first gear in described first supporter, and described restricted part limits the movement of described second supporter relative to described first supporter by contacting with described arcwall face.
According to a second aspect of the invention, provide a kind of image processing system, comprising: latent image carrier, it carries sub-image; First supporter, it supports described latent image carrier; First gear, it is rotatably supported by described first supporter and is subject to the drive force of driver element and rotates; Developing body, it is by the described image development on described latent image carrier; Second gear, it is by passing to described developing body with described first engaged gears by the revolving force from described first gear; Second supporter, it rotatably supports described developing body and described second gear, and described second supports physical efficiency moves along the direction making described second gear away from described first gear relative to described first supporter; Arcwall face, it to be arranged in described second supporter and centered by the axis of described second gear; And restricted part, it is arranged on also in the arcuate shape centered by the axis of described first gear in described first supporter, and described restricted part limits the movement of described second supporter relative to described first supporter by contacting with described arcwall face.
According to a third aspect of the invention we, based on described second aspect, described first support body supports transfer article and multiple latent image carrier, the image that described developing body develops is transferred on described transfer article from described multiple latent image carrier.
According to a forth aspect of the invention, provide a kind of assembly that can be arranged in apparatus main body, comprising: latent image carrier, it carries sub-image integral demounting; First supporter, it supports described latent image carrier; First gear, it is rotatably supported by described first supporter and is subject to the drive force of driver element and rotates; Developing body, it is by described image development; Second gear, it is by passing to described developing body with described first engaged gears by the revolving force from described first gear; Second supporter, it rotatably supports described developing body and described second gear, and described second supports physical efficiency moves along the direction making described second gear away from described first gear relative to described first supporter; Arcwall face, it to be arranged in described second supporter and centered by the axis of described second gear; And restricted part, it is arranged on also in the arcuate shape centered by the axis of described first gear in described first supporter, and described restricted part limits the movement of described second supporter relative to described first supporter by contacting with described arcwall face.
First aspect according to the present invention, described restricted part in the arcuate shape centered by the axis of described first gear contacts with the described arcwall face centered by the axis of described second gear, thus restriction supports the movement of described second supporter of described second gear, wherein, the second gear and the first engaged gears.Which suppress the change of the centre distance between described first gear and described second gear.
Second aspect according to the present invention, described restricted part in the arcuate shape centered by the axis of described first gear contacts with the described arcwall face centered by the axis of described second gear, thus restriction supports the movement of described second supporter of described second gear, wherein, the second gear and the first engaged gears.Which suppress the image deterioration caused due to the change of the centre distance between described first gear and described second gear.
The third aspect according to the present invention, described restricted part in the arcuate shape centered by the axis of described first gear contacts with the described arcwall face centered by the axis of described second gear, thus restriction supports the movement of described second supporter of described second gear, wherein, the second gear and the first engaged gears.Which suppress the displacement of the described transfer position caused due to the change of the centre distance between described first gear and described second gear.
Fourth aspect according to the present invention, described restricted part in the arcuate shape centered by the axis of described first gear contacts with the described arcwall face centered by the axis of described second gear, thus restriction supports the movement of described second supporter of described second gear, wherein, the second gear and the first engaged gears.Which suppress the image deterioration caused due to the change of the centre distance between described first gear and described second gear.
Accompanying drawing explanation
To be described in detail to exemplary embodiment of the present invention based on the following drawings, wherein,
Fig. 1 is the structure schematically showing image processing system according to an exemplary embodiment of the present invention;
Fig. 2 schematically shows the structure of the intermediary transfer unit in this exemplary embodiment;
Fig. 3 is for illustrating the close-up schematic view of the structure shown in Fig. 2; And
Fig. 4 is the schematic diagram of the structure that photoreceptor in this exemplary embodiment and developing body are shown.
Embodiment
Below with reference to accompanying drawing, exemplary embodiment of the present invention is described.
< is according to the structure > of the image processing system of exemplary embodiment
First, be described to the structure of the image processing system 10 according to this exemplary embodiment.Fig. 1 schematically shows the structure of the image processing system of this exemplary embodiment.In FIG, " upwards " arrow instruction direction straight up.
As shown in Figure 1, image processing system 10 has the image processing system main body 11 of accommodating each parts.
Image processing system main body 11 comprises: recording medium accepting unit 12, its collecting recording medium P, such as paper; Image formation unit 14, it forms image on recording medium P; Delivery unit 16, recording medium P is sent to image formation unit 14 from recording medium accepting unit 12 by it; And controller 20, it controls the operation of each parts of image processing system 10.In addition, be provided with recording medium deliverying unit 18 at the top of image processing system main body 11, recording medium P is discharged in recording medium deliverying unit 18 after forming image by image formation unit 14.
Image formation unit 14 comprises: image formation unit 22Y, 22M, 22C and 22K (hereinafter referred to as " image formation unit 22Y to 22K "), intermediate transfer belt 24, primary transfer roller 26 (example of conductive rollers) and secondary transfer roller 28.Image formation unit 22Y to 22K forms yellow (Y), magenta (M), blue-green (cyan) (C) and black (K) toner image respectively.Intermediate transfer belt 24 is used as the example of transfer article, the toner image that transfer printing is formed by image formation unit 22Y to 22K on intermediate transfer belt 24.Primary transfer roller 26 is used as the example of primary transfer parts, and the toner image formed by image formation unit 22Y to 22K is transferred on intermediate transfer belt 24 by it.Secondary transfer roller 28 is used as the example of secondary transfer printing parts, and it is by by primary transfer roller 26, the toner image be transferred on intermediate transfer belt 24 is transferred to recording medium P from intermediate transfer belt 24.
Image formation unit 22Y to 22K is arranged in the middle part of the above-below direction of image processing system 10 concurrently and tilts relative to horizontal direction.In addition, image formation unit 22Y to 22K has respective photoreceptor 32, and photoreceptor 32 rotates towards a direction (counter clockwise direction in Fig. 1) as the image-carrier for load image.Because image formation unit 22Y to 22K has similar structure, so do not illustrate the Reference numeral of the parts of image formation unit 22M, 22C and 22K in FIG.
Around each photoreceptor 32, sequentially arrange charging roller 34, exposure device 36, developing apparatus 38 and removal device 40 from the upstream side of the sense of rotation of photoreceptor 32.Charging roller 34 be used as charging device example and for photoreceptor 32 is charged.Exposure device 36 exposes the photoreceptor 32 charged through charging roller 34 thus forms electrostatic latent image.Developing apparatus 38 by the latent electrostatic image developing that is formed in by exposure device 36 on photoreceptor 32 to form toner image.Removal device 40 for removing the toner remained on photoreceptor 32 after being formed at the toner image on photoreceptor 32 and being transferred on intermediate transfer belt 24.
The picture signal that exposure device 36 sends based on controller 20 forms electrostatic latent image.Such as, the picture signal that controller 20 transmits is the picture signal that controller 20 obtains from external device (ED).
Developing apparatus 38 comprises: developing body 38A, and it passes through image development to photoreceptor 32 supply developer; And multiple transfer member 38B, it stirs developer and transmits developer to developing body 38A.
As shown in Figure 1, intermediate transfer belt 24 ringwise and be arranged on the top of image formation unit 22Y to 22K.Be provided with winding roller 42 and 44 in the inner circumferential side of intermediate transfer belt 24, thus intermediate transfer belt 24 is wrapped on winding roller 42 and 44.When any one in winding roller 42 and 44 rotates, intermediate transfer belt 24 rotates along a direction (clockwise direction in Fig. 1) while contacting with photoreceptor 32.
Winding roller 42 is used as the opposed roll opposite with secondary transfer roller 28.As shown in Figure 2, intermediate transfer belt 24 and image formation unit 22Y to 22K form intermediary transfer unit 60.Be described to the detailed construction of intermediary transfer unit 60 below.
As shown in Figure 1, each primary transfer roller 26 is opposite with corresponding photoreceptor 32, and intermediate transfer belt 24 is placed between primary transfer roller 26 and photoreceptor 32.Position between primary transfer roller 26 and photoreceptor 32 is used as primary transfer position, is transferred on intermediate transfer belt 24 by the toner image be formed on photoreceptor 32 in primary transfer position.Primary transfer roller 26 contacts with intermediate transfer belt 24 and rotates along with the rotation of intermediate transfer belt 24.
Secondary transfer roller 28 is opposite with winding roller 42, and intermediate transfer belt 24 is placed between secondary transfer roller 28 and winding roller 42.Position between secondary transfer roller 28 and winding roller 42 is used as secondary transfer printing position, is transferred on recording medium P by the toner image be transferred on intermediate transfer belt 24 in secondary transfer printing position.
Delivery unit 16 comprises: feed roller 46, and it sends recording medium P from recording medium accepting unit 12; Transfer path 48, the recording medium P that feed roller 46 is sent transmits via transfer path 48; And multiple transfer roller 50, it is arranged along transfer path 48.The recording medium P that feed roller 46 is sent by transfer roller 50 is sent to secondary transfer printing position.
Be provided with fixing device 30 in the downstream of secondary transfer printing position in the transmission direction, fixing device 30 is fixed on by secondary transfer roller 28 on recording medium P from intermediate transfer belt 24 toner image be transferred to recording medium P in secondary transfer printing position.In addition, be provided with distributing roller 52 in the transmission direction in the downstream of fixing device 30, distributing roller 52 has the recording medium P of toner image to be expelled to recording medium deliverying unit 18 by fixing.
Below, be explained forming the image forming operation that image carries out on recording medium P to the image processing system 10 of this exemplary embodiment.
In the image processing system 10 of this exemplary embodiment, recording medium P to be sent from recording medium accepting unit 12 by feed roller 46 and is sent to secondary transfer printing position by multiple transfer roller 50.
On the other hand, in image formation unit 22Y to 22K, exposure device 36 exposes the photoreceptor 32 charged through charging roller 34, thus forms electrostatic latent image on photoreceptor 32.Then, latent electrostatic image developing is formed color toner image by developing apparatus 38 on photoreceptor 32.The color toner image formed by image formation unit 22Y to 22K to be superimposed on intermediate transfer belt 24 thus to form coloured image.Subsequently, the coloured image be formed on intermediate transfer belt 24 is transferred on recording medium P in secondary transfer printing position.
Recording medium P transferred with toner image is transferred into fixation unit 30, and fixation unit 30 is by fixing for the toner image through transfer printing.After fixing, recording medium P is expelled to recording medium deliverying unit 18 by distributing roller 52.Execution a series of images forming step described above.
The structure > of < intermediary transfer unit 60
Below, be described to the structure of intermediary transfer unit 60.Fig. 2 schematically shows the structure of intermediary transfer unit 60.
As shown in Figure 2, intermediary transfer unit 60 comprises: image formation unit 22Y to 22K, intermediate transfer belt 24, winding roller 42 and 44, four primary transfer rollers 26, rotatably support the first supporter 62 of winding roller 42 and 44, four photoreceptors 32 and four primary transfer rollers 26, and rotatably support second supporter 64 of developing body 38A and transfer member 38B.
Intermediary transfer unit 60 is removably mounted on (see Fig. 1) in image processing system main body 11, and forms the example of the assembly that can integrally dismantle from image processing system main body 11.
First supporter 62 is fixed in image processing system main body 11 and (is called " fixed support body 62 " by the first supporter 62 hereinafter).Second supporter 64 is attached to fixed support body 62 (being called " removable supporter 64 " by the second supporter 64 hereinafter) movably.
Fixed support body 62 comprises: four the first support components 71, and it rotatably supports four photoreceptors 32 respectively; And second support component 72, it supports four the first support components 71 and rotatably supports winding roller 42,44 and primary transfer roller 26.
As shown in Figure 3, the second support component 72 of fixed support body 62 rotatably supports the first gear 81.First gear 81 contacts with the second gear 82 and the driving force of self-driven unit (not shown) passes to the second gear 82 (will be described below) in the future.First gear 81 rotatably can be supported by corresponding first support component 71.
Second support component 72 is fixed in image processing system main body 11, and the first support component 71 is fixed on the second support component 72.Thus the first support component 71 and the second support component 72 are fixed relative to the position of image processing system main body 11.
Although not shown in figs. 3 and 4, each first support component 71 had both supported photoreceptor 32, also supported charging roller 34, exposure device 36 and removal device 40.
Each removable supporter 64 rotatably supports developing body 38A and transfer member 38B.Each developing apparatus 38 comprises: removable supporter 64, developing body 38A and transfer member 38B.
Second gear 82 rotatably to be supported by removable supporter 64 and coaxial with developing body 38A at the axial end portion of developing body 38A.Driving force from the first gear 81 is passed to developing body 38A by being engaged with the first gear 81 by the second gear 82.
Removable supporter 64 is supported on not with on photoreceptor 32, first gear 81 and the coaxial axle portion 66 of the second gear 82 rotatably relative to the first support component 71 of fixed support body 62.This allow the axis of removable supporter 64 around axle portion 66 along developing body 38A near and direction (direction see arrow A in Fig. 3 and B) away from photosensitive drums 32 rotate.
Rotated by the axis around axle portion 66, removable supporter 64 can be mobile along the direction (direction see arrow B in Fig. 3) of the centre distance between change first gear 81 and the second gear 82, more particularly, move along the direction making the second gear 82 away from the first gear 81.
First gear 81 rotates along sense of rotation (counter clockwise direction in Fig. 3) thus the thrust on the direction making developing body 38A near photoreceptor 32 (direction see the arrow A in Fig. 3) is applied on the second gear 82.
In addition, support section 72 is provided with torque spring 68.Torque spring 68 is the example of force application part and makes the thrust on the direction (direction see the arrow A in Fig. 3) of the close photoreceptor 32 of developing body 38A to removable supporter 64 applying.More particularly, torque spring 68 utilizes its spring force to press removable supporter 64 towards the direction of the arrow A in Fig. 3.
Like this, as shown in Figure 4, developing body 38A is pressed towards photoreceptor 32 (direction towards the arrow A in Fig. 3), the flange portion 37 at arbitrary axial end portion place being located at developing body 38A contacts with the non-image areas H of the respective shaft of photoreceptor 32 to end, thus limits the centre distance between developing body 38A and photoreceptor 32.The diameter of flange portion 37 is larger than the diameter of developing body 38A.
As shown in Figure 3, in the present embodiment, removable supporter 64 has the arcwall face 74 centered by the axis of the second gear 82.In addition, the support component 72 of fixed support body 62 has the arc restricted part 76 centered by the axis of the first gear 81.Restricted part 76 limits the movement of removable supporter 64 relative to fixed support body 62 by contacting with arcwall face 74.
Arcwall face 74 and restricted part 76 be arranged in the second gear 82 with the side (lower left side of Fig. 3 being provided with the first gear 81 and axle portion 66, hereinafter referred to as " lower left side ") relative side (upper right side in Fig. 3, hereinafter referred to as " upper right side ").Arcwall face 74 bends to protruding in upper right side, and that is, arcwall face 74 is by the Surface forming pointing to upper right side.
On the contrary, restricted part 76 bends to recessed in upper right side, and that is, restricted part 76 is by the Surface forming opposite with arcwall face 74.Due to above-mentioned layout, the radius r 1 of restricted part 76 arranges larger than the radius r 2 of arcwall face 74.
The operation > of < exemplary embodiment
Below, be described to the operation of this exemplary embodiment.
In the intermediary transfer unit 60 of image processing system 10, by torque spring 68 grade effect towards the arrow A in Fig. 3 direction pressing each removable supporter 64.Like this, the flange portion 37 making the arbitrary axial end portion place being positioned at developing body 38A contacts with the non-image areas H of the respective shaft being positioned at photoreceptor 32 to end, thus limits the centre distance between developing body 38A and photoreceptor 32.
When power on the direction of the arrow B in Fig. 3 is resisted torque spring 68 grade and acts on removable supporter 64, the axis direction of removable supporter 64 around axle portion 66 rotates.Removable supporter 64 does not rotate around the axis of the first gear 81, but the axis around axle portion 66 is along making the second gear 82 rotate away from the direction of the first gear 81, and axle portion 66 is used as centre of support.
In the present example embodiment, restricted part 76 limits the movement of removable supporter 64 relative to fixed support body 62 by contacting with arcwall face 74.
The distance of the axis distance restricted part 76 of the first gear 81 is fixing, and the distance of the axis of the second gear 82 distance arcwall face 74 is fixing.Therefore, even if the contact position between restricted part 76 and arcwall face 74 changes, removable supporter 64 also still rotates along restricted part 76 in the circumference centered by the axis of the first gear 81.Which has limited the centre distance between the first gear 81 and the second gear 82.
The arc of arcwall face 74 and restricted part 76 must be always not necessarily the arcuate shape of full circle, but can in following scope curved shape, namely, suppress the change of the centre distance between the first gear 81 and the second gear 82, thus at least prevent, between the first gear 81 and the second gear 82, tooth occurs and jump (tooth jumping).Therefore, as long as the distance met between restricted part 76 and the axis of the first gear 81 and the distance between arcwall face 74 and the axis of the second gear 82 are fixing in above-mentioned scope, be exactly gratifying.
Although removable supporter 64 rotates relative to fixed support body 62 in the present embodiment, but, alternatively, removable supporter 64 also can relative to fixed support body 62 linearly or other direction move.
Although fixed support body 62 is formed by the first supporter 71 and the second support component 72 in the present embodiment, fixed support body 62 also can be made up of one, three or more parts.
Although the second gear 82 is arranged coaxially with developing body 38A in the present embodiment, the second gear 82 also can not be coaxial with developing body 38A.
Although the intermediary transfer unit 60 comprising intermediate transfer belt 24 is in the present embodiment used as the example of assembly, this assembly also can not comprise intermediate transfer belt 24.
Object for example and explanation provides the above-mentioned explanation of exemplary embodiment of the present invention.Its intention does not lie in exhaustive or limits the invention to disclosed exact form.Obviously, many amendments and modification are apparent for a person skilled in the art.Select and illustrate that embodiment is to explain principle of the present invention and practical application thereof best, thus making others skilled in the art person can understand the invention of various embodiment and be suitable for the various amendments of certain expected application.Its object is to limit scope of the present invention by appended claims and equivalents thereof.
Claims (4)
1. a gear center-distance maintaining mechanism, comprising:
First supporter, it rotatably supports the first gear, and described first gear rotates by the drive force of driver element;
Second supporter, it rotatably supports the second gear, described second gear and described first engaged gears are to pass to rotary body by the revolving force from described first gear, and described second supports physical efficiency moves along the direction making described second gear away from described first gear relative to described first supporter;
Arcwall face, it to be arranged in described second supporter and centered by the axis of described second gear; And
Restricted part, it is arranged on also in the arcuate shape centered by the axis of described first gear in described first supporter, and described restricted part limits the movement of described second supporter relative to described first supporter by contacting with described arcwall face,
Wherein, described arcwall face and described restricted part are positioned at the side relative with the side being provided with described first gear of described second gear.
2. an image processing system, comprising:
Latent image carrier, it carries sub-image;
First supporter, it supports described latent image carrier;
First gear, it is rotatably supported by described first supporter and is subject to the drive force of driver element and rotates;
Developing body, it is by the described image development on described latent image carrier;
Second gear, it is by passing to described developing body with described first engaged gears by the revolving force from described first gear;
Second supporter, it rotatably supports described developing body and described second gear, and described second supports physical efficiency moves along the direction making described second gear away from described first gear relative to described first supporter;
Arcwall face, it to be arranged in described second supporter and centered by the axis of described second gear; And
Restricted part, it is arranged on also in the arcuate shape centered by the axis of described first gear in described first supporter, and described restricted part limits the movement of described second supporter relative to described first supporter by contacting with described arcwall face,
Wherein, described arcwall face and described restricted part are positioned at the side relative with the side being provided with described first gear of described second gear.
3. image processing system according to claim 2, wherein,
Described first support body supports transfer article and multiple latent image carrier, the image that described developing body develops is transferred on described transfer article from described multiple latent image carrier.
4. be arranged on the assembly in apparatus main body energy integral demounting, comprise:
Latent image carrier, it carries sub-image;
First supporter, it supports described latent image carrier;
First gear, it is rotatably supported by described first supporter and is subject to the drive force of driver element and rotates;
Developing body, it is by described image development;
Second gear, it is by passing to described developing body with described first engaged gears by the revolving force from described first gear;
Second supporter, it rotatably supports described developing body and described second gear, and described second supports physical efficiency moves along the direction making described second gear away from described first gear relative to described first supporter;
Arcwall face, it to be arranged in described second supporter and centered by the axis of described second gear; And
Restricted part, it is arranged on also in the arcuate shape centered by the axis of described first gear in described first supporter, and described restricted part limits the movement of described second supporter relative to described first supporter by contacting with described arcwall face,
Wherein, described arcwall face and described restricted part are positioned at the side relative with the side being provided with described first gear of described second gear.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-099878 | 2010-04-23 | ||
| JP2010099878A JP2011232386A (en) | 2010-04-23 | 2010-04-23 | Retention mechanism of distance between shafts of gears, image formation apparatus and assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102236279A CN102236279A (en) | 2011-11-09 |
| CN102236279B true CN102236279B (en) | 2015-05-20 |
Family
ID=44815902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010589865.8A Expired - Fee Related CN102236279B (en) | 2010-04-23 | 2010-12-07 | Gear center-distance maintaining mechanism, image forming apparatus, and assembly |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US8515308B2 (en) |
| JP (1) | JP2011232386A (en) |
| CN (1) | CN102236279B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8683886B2 (en) * | 2011-06-08 | 2014-04-01 | First Dome Corporation | Sliding auxiliary device |
| US9145956B2 (en) | 2013-01-25 | 2015-09-29 | Gustomsc Resources B.V. | Torque sharing drive and torque sharing process |
| US9531237B2 (en) | 2013-12-19 | 2016-12-27 | Gustomsc Resources B.V. | Dual rack output pinion drive |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5020386A (en) * | 1989-11-27 | 1991-06-04 | Allied-Signal Inc. | Reversing mechanism for a motor drive |
| CN1652039A (en) * | 2004-02-03 | 2005-08-10 | 三星电子株式会社 | Detachable developing apparatus and driving apparatus of the same |
| US7225697B2 (en) * | 2002-05-31 | 2007-06-05 | Hewlett-Packard Development Company, L.P. | Power transmission arrangement |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0397148A (en) * | 1989-09-11 | 1991-04-23 | Mitsubishi Electric Corp | Rotation transmission device |
| JPH10104908A (en) | 1996-09-30 | 1998-04-24 | Konica Corp | Color image forming device |
| US6708011B2 (en) | 2001-07-05 | 2004-03-16 | Seiko Epson Corporation | System for forming color images |
| US7684730B2 (en) | 2007-01-18 | 2010-03-23 | Kyocera Mita Corporation | Image forming apparatus and intermediate transfer unit |
-
2010
- 2010-04-23 JP JP2010099878A patent/JP2011232386A/en active Pending
- 2010-11-04 US US12/939,749 patent/US8515308B2/en not_active Expired - Fee Related
- 2010-12-07 CN CN201010589865.8A patent/CN102236279B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5020386A (en) * | 1989-11-27 | 1991-06-04 | Allied-Signal Inc. | Reversing mechanism for a motor drive |
| US7225697B2 (en) * | 2002-05-31 | 2007-06-05 | Hewlett-Packard Development Company, L.P. | Power transmission arrangement |
| CN1652039A (en) * | 2004-02-03 | 2005-08-10 | 三星电子株式会社 | Detachable developing apparatus and driving apparatus of the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102236279A (en) | 2011-11-09 |
| US8515308B2 (en) | 2013-08-20 |
| US20110262182A1 (en) | 2011-10-27 |
| JP2011232386A (en) | 2011-11-17 |
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